57274643 has 2 divisors, whose sum is σ = 57274644. Its totient is φ = 57274642.

The previous prime is 57274627. The next prime is 57274661. The reversal of 57274643 is 34647275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57274643 - 2⁴ = 57274627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57274597 and 57274606.

It is not a weakly prime, because it can be changed into another prime (57274843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28637321 + 28637322.

It is an arithmetic number, because the mean of its divisors is an integer number (28637322).

Almost surely, 2^57274643 is an apocalyptic number.

57274643 is a deficient number, since it is larger than the sum of its proper divisors (1).

57274643 is an equidigital number, since it uses as much as digits as its factorization.

57274643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 38.

The square root of 57274643 is about 7568.0012552853. The cubic root of 57274643 is about 385.4672305761.

The spelling of 57274643 in words is "fifty-seven million, two hundred seventy-four thousand, six hundred forty-three".